All 4 Uses of

establish
in
Waiting for Godot

of Essy-in-Possy of Testewand Cunard it is established beyond all doubt all other doubt than that which clings to the labors of men that as a result of the labors unfinished of Testew and Cunnard it is established as hereinafter but not so fast for reasons unknown that as a result of the public works of Puncher and Wattmann it is established beyond all doubt that in view of the labors of Fartov and Belcher left unfinished for reasons unknown of Testew and Cunard left unfinished it is established what many deny that man in Possy of Testew and Cunard that man in Essy that man in short that man in brief in spite of thestrides of alimentation and defecation wastes and pines wastes a†
Act 1

established = proven or shown

of the labors unfinished of Testew and Cunnard it is established as hereinafter but not so fast for reasons unknown that as a result of the public works of Puncher and Wattmann it is established beyond all doubt that in view of the labors of Fartov and Belcher left unfinished for reasons unknown of Testew and Cunard left unfinished it is established what many deny that man in Possy of Testew and Cunard that man in Essy that man in short that man in brief in spite of thestrides of alimentation and defecation wastes and pines wastes and pines andconcurrently simultaneously what is more for reasons unknown in spite of thestrides of physical culture the practice of sports such as tennis foo†
Act 1

Definitions:

(1) (establish as in: establish a positive tone)
create, start, or set in [a] place
(2) (establish as in: establish that there is a need)
show or determine (cause to be recognized or figure out)